Prussian Blue

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Prussian Blue (PB 27) – Professional Handmade Watercolour Paint

Prussian Blue – Professional Handmade Watercolour

Swatch Painted On: Saunders Waterford, White, Rough, 100% Cotton, Mould Made, Acid-Free, 300 gsm Watercolour Paper

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Description

Prussian Blue (P.B. 27) is a rich, deep blue pigment with a subtle green undertone, prized for its dramatic intensity and versatility. This historic watercolour paint offers a moody, inky hue perfect for capturing stormy skies, deep shadows, turbulent seas, and striking contrasts in any composition. Its cool, intense blue character lends itself beautifully to both traditional landscapes and contemporary artwork.

This pigment is semi-transparent with medium staining strength, making it ideal for layered washes and strong tonal values. At full concentration, it delivers a dark, velvety blue, while when diluted, it softens into elegant, misty blues—ideal for atmospheric backgrounds or subtle water effects. Its smooth flow and responsiveness make it a joy to work with, especially when glazing or layering.

Prussian Blue blends exceptionally well with other pigments—producing vibrant forest greens when mixed with yellows and rich purples when combined with reds. With its AAA lightfastness rating, it maintains colour integrity over time, ensuring your artwork remains bold and luminous for years to come. Whether you're painting landscapes, abstracts, or expressive portraits, Prussian Blue is a powerful and essential pigment in any professional watercolour palette.

We Recommend

Use distilled water with all our watercolours to maintain each pigment’s purity and performance.

Got questions? Feel free to contact us—we’re here to help you find the perfect pigment.

Our handmade watercolours are crafted for artists of all experience levels, from beginners to professionals, who value rich pigments and consistent performance.

Product Information

Attribute Value
Pigment Ferric Ferrocyanide
Pigment C.I. Number P.B 27
Series 3
Lightfastness AAA (Excellent)
Opacity Semi-Transparent
Granulation No Granulation
Staining Medium Staining
Regulatory & Safety Information
California Proposition 65 Notice: California law requires us to provide the following notice: This product contains DMDMH (a preservative that can release small amounts of formaldehyde). This substance is on California's Proposition 65 list of chemicals known to the state to cause cancer when exposure exceeds very strict limits. Our watercolours remain safe for normal artist use. Learn more at www.P65Warnings.ca.gov.

Watch This Pigment in Action

Customer Reviews

Based on 6 reviews
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A
Anderson, Lorraine
deep and dark

although i do love bright clean blues, delphinium being a favourite, sometimes you just need an inky blue for depth. so yes, i love this this blue and as per all other colours it can be used in small amounts to deepen brighter blues, greens etc.

I
Ian Jenkinson
Prussian blue

Really good quality paint, it's a pleasure to use.

A
Annmarie Fitzgibbons

the Prussian Blue is as a beautiful depth of colour, that is very useful with a wide range of dilution, as with all of Jackman colours it is brilliant

S
Sian Morgan
The Other Versatile Blue

The ‘cool’ twin of Ultramarine blue; great for darkening other colours, creating shadows, adding depth to backgrounds. Has a transparency when you don’t want a flat, matt effect - makes a very good, rich black. It mixes well with other paints. This has become my preferred cool blue. The quality of this Jackmans paint, like all their other paints is outstanding - smooth, easy to mix and highly pigmented - very little indeed goes a very long way.

S
STEPHEN WELHAM
Prussian blue?

Prussian blue is a lovely rich dark blue and is a very useful mixing colour as well as a stand alone colour as with all jackmans colours excellent quality and rich in pigment strength


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